videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Brahms - Violin Sonata No.2 in A major 1st mov, Allegro amabile, Brahms - Violin Sonata No.2 in A major 3rd mov, Allegretto Grazioso (Quasi Andante)